ZnTe/ZnTe:Cu complex layers deposited by vacuum co-evaporation have been in- troduced to CdS/CdTe solar cells. The C-V and I-V curves have been investigated and the effects of un-doped ZnTe layer thickness as well as ...ZnTe/ZnTe:Cu complex layers deposited by vacuum co-evaporation have been in- troduced to CdS/CdTe solar cells. The C-V and I-V curves have been investigated and the effects of un-doped ZnTe layer thickness as well as annealing temperatures on I-V characteristics of CdTe solar cells have been studied. The results show that the “roll over” and “cross over” phenomena of dark and light I-V curves can be eliminated by use of ZnTe/ZnTe:Cu layer and the fill factor for a typical sample has increased to 73%, where there is no high resistance transparent layer. The reasons have been discussed combined with the energy band diagram of CdTe solar cells.展开更多
In this viewpoint,recent hot topics in the photovoltaic community,interdigitated back contact(IBC)cells,are systematically reviewed from the view of device configuration.Two categories of IBC designs on the most popul...In this viewpoint,recent hot topics in the photovoltaic community,interdigitated back contact(IBC)cells,are systematically reviewed from the view of device configuration.Two categories of IBC designs on the most popular perovskite solar cells(PSCs)were discussed,and a planar back-contact perovskite module was first proposed.The device configuration,fabrication methods,working mechanism,optimization strategies,and future development directions of this novel PSC module were put forward to show its superiorities in the module performance,processing difficulty,and extensible functionality among present perovskite modules,presenting promising potential to improve the competitiveness of perovskite technology in the photovoltaic market.展开更多
利用AMPS程序模拟研究了非晶硅锗薄膜太阳电池的窗口层材料和厚度以及背接触势垒对电池光伏性能的影响。模拟发现带隙为1.92 e V的非晶硅碳更适合作为太阳电池的窗口层,且窗口层越薄电池的性能越好。模拟还发现,背接触势垒越低,则电池...利用AMPS程序模拟研究了非晶硅锗薄膜太阳电池的窗口层材料和厚度以及背接触势垒对电池光伏性能的影响。模拟发现带隙为1.92 e V的非晶硅碳更适合作为太阳电池的窗口层,且窗口层越薄电池的性能越好。模拟还发现,背接触势垒越低,则电池的光伏性能越好,当背接触势垒在0.11-0.51 e V的范围内时电池的转换效率不会受到背接触势垒的影响。展开更多
基金Supported by the National High Technology ResearchDevelopment Program (863 Program)the Tenth Five-year Plan of China (Grant No. 2003AA513010)
文摘ZnTe/ZnTe:Cu complex layers deposited by vacuum co-evaporation have been in- troduced to CdS/CdTe solar cells. The C-V and I-V curves have been investigated and the effects of un-doped ZnTe layer thickness as well as annealing temperatures on I-V characteristics of CdTe solar cells have been studied. The results show that the “roll over” and “cross over” phenomena of dark and light I-V curves can be eliminated by use of ZnTe/ZnTe:Cu layer and the fill factor for a typical sample has increased to 73%, where there is no high resistance transparent layer. The reasons have been discussed combined with the energy band diagram of CdTe solar cells.
基金China Postdoctoral Science Foundation(2023M731476,2023T160286)Beijing Postdoctoral Research Foundation.
文摘In this viewpoint,recent hot topics in the photovoltaic community,interdigitated back contact(IBC)cells,are systematically reviewed from the view of device configuration.Two categories of IBC designs on the most popular perovskite solar cells(PSCs)were discussed,and a planar back-contact perovskite module was first proposed.The device configuration,fabrication methods,working mechanism,optimization strategies,and future development directions of this novel PSC module were put forward to show its superiorities in the module performance,processing difficulty,and extensible functionality among present perovskite modules,presenting promising potential to improve the competitiveness of perovskite technology in the photovoltaic market.
文摘利用AMPS程序模拟研究了非晶硅锗薄膜太阳电池的窗口层材料和厚度以及背接触势垒对电池光伏性能的影响。模拟发现带隙为1.92 e V的非晶硅碳更适合作为太阳电池的窗口层,且窗口层越薄电池的性能越好。模拟还发现,背接触势垒越低,则电池的光伏性能越好,当背接触势垒在0.11-0.51 e V的范围内时电池的转换效率不会受到背接触势垒的影响。
